Home / 84,501.29-126,499.39-51,120.47

Finding the Fourth Proportional to 84,501.29, 126,499.39 and 51,120.47

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Solution

The fourth proportional to 84,501.29, 126,499.39 and 51,120.47 is: 76,527.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,501.29 : 126,499.39 = 51,120.47 : x
  2. Step 2: Convert to fraction form
    84,501.29/126,499.39 = 51,120.47/x
  3. Step 3: Cross multiply
    84,501.29x = 126,499.39 × 51,120.47
  4. Step 4: Simplify right side
    84,501.29x = 6,466,708,271.51
  5. Step 5: Solve for x
    x = 6,466,708,271.51/84,501.29
  6. Step 6: Final answer
    x = 76,527.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.